Hair trimming attachment for electric razors



p 16, 19 1. L. M. COLES 2,256,076

HAIR TRIMMING ATTACHMENT FOR ELECTRIC RAZORS Filed Jan. 19, 1959 I I MFig 11 and a cutter generally designated 12.

I Patented Sept 16, 194i 'UNITED STATES PATENT OFFICE.

HAIR TRHHMING A'ITACHMENT FOR ELEC- TRIC RAZORS Leon' M. Coles, PortChester, N. Y. Application January 19, 1939, Serial No. 251,672

v 4 Claims.

This invention relates to new and useful improvements in electric razorsor socalled dry shavers and has particular relation to a hair trimmingattachment for such razors or dry shavers.

The objects and advantages of the invention will become apparent from aconsideration or the following detailed description taken in connectionwith the accompanying drawing wherein satisfactory embodiments of theinvention are shown. However, it is to be understood that the inventionis not limited to thedetails disclosed but includes all such variationsand-modifications as fall within the spirit of the invention and thescope of the appended claims.

In the drawing:

- Fig. 1 is a perspective view showing one well known type .of electricrazor having the attachment of the invention applied thereto;

Fig. 2 is an enlarged plan view of the attachment;

Fig. 3 is an enlarged plan view of the razor head;

Fig. 4 is a detail sectional view showing construction;

Fig. 5 is a view similar to Fig. 4 but showing a slight modification;

Fig. 6 is a view at right angles to Fig. 5;

Fig. '7 is a view similar to Fig. 1 but showing the application of theinvention to a slightly different type of razor, the handle of thelatter being broken away;

Fig. 8 is an enlarged transverse sectional view of the attachment t Fig.7; v

Fig. '9 is an enlarged top plan view of the attachment;

Fig. 10 is an enlarged top plan view of the head of the razor of Fig. 7;and

.Fig. 11 is an enlarged transverse sectional view of said head.

Referring in detail to the drawing and at first to the form of theinvention shown in Figs. 1

through 6, at I0 is generally indicated an electric razor or dry shaverincluding a handle I I Cutter 12 includes an outer stationary element l4and an inner movable element I5, the latter during use of therazor,'being reciprocated in the well known manner by a power means (notshown) within the handle ll:

Each of the elements l4 and I have teeth along their oppositelongitudinal edges and the' teeth on the respective elements aredesignated 16 and [1 respectively. In the use of the razor the other ofthe razor is cut ofi as the element I5 is reciprocated. Obviously theforegoing briei. description relates to 'a well known construction ofelectric razor.

The attachment of the invention is generally designated l8 and is showncomplete in Fig. 1. Such attachment is preferably made of stainlessspring steel and includes a pair of arms l9 and a connecting portion 20extending between said arms. Arms l9 are arranged at opposite transverseedges or sides of the handle ll while connecting portion 20 spans thecutter means, being disposed across the outer side of cutter element IQ.

Arms I! each include extensions or lugs 2| located to engage the frontand rear or the wide sides of the handle ll whereby to hold theattachment on the razor against movement of portion 20 back and forthacross the cutter element 12. It will be apparent that the arms l9 willprevent movement of the attachment in a direction cross wise of thecutter teeth of the razor.

When the attachment is made of spring steel the arms I9 and the lugs 2|are to tightly embrace the razor handle whereby to keep the attachmentin place on the razor. However, if desired an elastic band 22 isprovided to encircle the razor handle and the said arms l9 and lugs 2|and to clamp them against the handle whereby to keep the attachment inthe desired position on the handle the adjustment made possible by theconstruction described being for a purpose to appear.'

As herein suggested (see Figs. 1 and 4) the sides of the handle II areprovided with vertically extending slots 23 receiving lugs 24 carried bythe arms IS. The elastic band 22 keeps the arms l9 against the sides ofthe handle and the said lugs 24 are thus kept in the slots. Obviouslythe lugs and slots provide for adjustment to dispose the attachmentportion 20 in more or less spaced relation tothe cutter element 14, asmay be desired.

Along its opposite longitudinal edges the attachment portion 20 isprovided with teeth 25 and 26. Teeth 25 are much finer than are theteeth 26 and the purpose of this construction will appear. The outer endportions of both sets of teeth are tapered to facilitate the entrance ofhair between the teeth but the extreme outer ends of the teeth arerounded or at least blunted so as not to readily prick the skin of auser.

Teeth 26 in their edges are notched as at 21.

hair entering between the teeth at one side or Preferably the notches inthe teeth are of such shape as to result in the formation oi.straightment I4.

Figs. 5 and 6 show another arrangement whereby the attachment may besecured to the razor for adjustment relative thereto. In these figuresthe arms l9 of the attachment are provided with slots 30 extendingvertically of the arms and set screws 3| or the like passing throughsuch slots are threaded into the handle. Obviously on loosening of thescrews 3| the attachment may be adjusted to position its connectingportion 20 in the desired relation to the cutter element I4. Thereafterthe screws willbe tightened. i

In using the device the operator when he wishes to trim the hair fromthe back of his neck securesthe attachment to the razor with the,portion 20 against the cutter element l4. This positioning is alsosuitable for use in the trimming of the sideburns. To trim his hair the.operator adjusts the attachment to have its connecting portion 20disposed about one-.- eighth of an inch from the element I4.

The device is preferably used with an up and down motion, the coarseteeth 26 being drawn through the hair as the device is moved upwardlyand then the device is tilted in the opposite direction and the fineteeth 25 passed through the hair to comb it as the device is drawndownwardly. The coarse teeth 25 should not be more than onethirty-second inch wide and the notches are as deep as may be madewithout unduly weakening the teeth. The fine teeth may be one-' half thewidth of the coarse teeth. 1

During the use of the device as a trimmer the teeth 25 and 26 direct orguide the hairs to be cut to the cutter means of the razor. The notches21 in the teeth serve to hold the hairs to the cutter means. That is,the hairs against the shoulders of said notches cannot spring away fromthe cutters. Further the notches permit the hairs to spread along thecutters so that the hairs while held are not held in bunches and mayenter between the teeth of the cutters. Therefore the cutting operationis facilitated.

In connection with the feature of the shoulders of the notches holdingthe hairs to the cutter it will be apparent. that (see Fig. 2) theshoulders 29 of the intermediate set of notches will be particularlyeffective with the razor shown. Such shoulders are located just beyondthe outer ends of the teeth of the guard or element l4, the ends of theteeth being in the line 32 and the teeth being shown in dotted lines.The ends of the teeth I5 being slightly short of the shoulders the hairsheld by the shoulders may move into the slots or spaces between theteeth. The purpose of the various sets of notches is to have at leastone set of shoulders located for cooperation with the teeth of therazor. Where several closely located sets of shoulders are provided asshown one set will be properly located after anyadjustment of theattachment'and should the attachment change position slightly due towear or the like.

Referring now to theform shown in Figs. 7 through 11 at 40 is generallyindicated another type of electric razor or dry shaver including ahandle 4i and a cutter means generally indicated at 42. Means 42includes an outer stationary element 43 and an inner movable element 44adapted to be reciprocated by a power means (not shown) within thehandle 4| as is well understood in the art. Element 43 and 44 are oisubstantially the same cross sectional configuration and a cross sectionof the element 43 is shown in Fig. 11.

Each element is provided with slots 45 in the Aorgn 0! an inverted Uopening through both the top and the sides of the elements, the slotsbeing best shown in Figs. 10 and 11. In the use of the device the hairsto be cut enter into the slots 45 in the element 43 and thecorresponding slots (not-shown) -in the element 44 and are cut oil 1 asthe element 44 is reciprocated in element 43.

This is a well known razor now on the market.

' formation of teeth 52 which are of inverted U- shape. Teeth 52 aretapered toward their outer ends as viewed in plan (Fig. 9) to facilitatethe entrance into the slots of the hair to be cut. The teeth guide ordirect the hair into the cutter means of the invention.

As clearly shown in Fig. 9 the teeth 52 are notched in the sidesof theirconnecting portions to-provide shoulders 53' which, during use of thedevice, serve to hold the hairs to the cutter and yet to permit thehairs to spread along the cutter means whereby the hair 'is notpresented in bunches to the cutter. Thus it will be seen that thepurpose of the notches in the teeth 52 is the same as that above fullydescribed whe considering the notches in teeth 25.

Handle 4i is provided with a recess 54 into" which snugly fits theattachment extension 50.

when the attachment is applied to the razor. .At such time theconnecting portion 41 of the attachment is disposed over the cuttermeans'oi the razor and the attachment may be described as straddling thecutter head. Thus the teeth 52 of the attachment serve to guide to thecutter teeth of the razor the hairs which are to be cut. Further teeth52 serve to hold such hairs to the cutters while yet permitting them tospread along the cutter.

The extension 50 is bifurcated as best shown in Fig. 7 and straddles thescrew 55 in the recess 54. Obviously the screw serves to clamp theextension against the body of the razor handleand the extension having asnug fit in the recess the attachment is held against turning movementrelative to the razor. On loosening of thescrew the position of theattachment may be adjusted or the attachment may be removed from therazor if the latter is to be used for shaving. In making the adjustmentwith either form of the attachment the connecting portion thereof isbrought closer to or moved outwardly from the cutter means of the razor.

Having thus set forth the nature of my invention, what I claim is:

1. In combination with a power razor comprising a handle having acuttermeans at one end thereof and a power means in the handle for operatingsaid cutter means, said cutter means including an outer stationaryelement and an inner movable element, each of said elements elongatedand having teeth opening along its op-.

strokes, and resilient means encircling the razor handle and clampingthe arms of the attachment against the handle.

2. In combination with a power razor comprising a handle having a cuttermeans at one end thereof and supporting a power means for operating saidcutter means, said cutter means including an outer stationary elementand an inner movable element, each of said elements elongated and havingteeth opening along its opposite longitudinal edges, a hair trimmingattachment for said razor, said attachment including arms against thetransverse sides of said handle, an elongated part extending over saidouter cutter element, said part having teeth opening through itsopposite longitudinal edges for guiding hairs to said elements wherebyto have the razor cut on the up and on the down stroke, and lugs on theedges of said arms and clampingly engaging the longitudinal sides of thehandle whereby endwise and transverse movement of said part relative tothe cutter means is prevented.

3. In combination with a power razor comprising a handle having a cuttermeans at one end thereof and power means in the handle for operatingsaid cutter means, said cutter means including an outer stationaryelement and an inner movable element, each of said elements elongatedand having teeth opening along its opposite longitudinal edges, a hairtrimming attachment on said razor, said attachment including armsagainst the sides of the handle, an elongated part extending over saidouter stationary element, said part having teeth opening through itsopposite longitudinal edges for guiding of hairs to said elementswhereby to have the razor cut on up and on down strokes, and said teethalong one longitudinal edge of said attachment having rows of notches intheir edges to hold the hairs to be cut to said cutter means and topermit the hairs to spread along the cutter.

4. A hair trimming attachment for an electric razor comprising anelongated piece of sheet metal bent transversely at a pair of spacedpoints into a generally inverted U-shape whereby the attachment includesa pair of arms and a connecting portion between said arms, saidconnecting portion including a solid intermediate portion, rows offingers on the opposite tree edges of said portion and in the planethereof with the fingers of one edge separated from those of the otheredge by said intermediate portion, integral lugs on the opposite edgesor each of said arms, and

' said lugs 01 each arm extending toward those 01' the other arm.

LEON M. COLES.

